<html>
    <head>
        <title>HOHO</title>
        <script>
function _(id)
{
    return document.getElementById(id);
}

function click()
{
    _("TESTDIV").innerHTML = "Waiting...";
    r = new XMLHttpRequest();
    r.open("GET", "a", false);
    r.send(null);
    _("TESTDIV").innerHTML = r.responseText;
}
        </script>
    </head>
    <body>
        <form action="/signin" method="post" id="form_signin">
            <input type="text" name="username" />
            <input type="password" name="password" />
            <input type="submit" name="submit_signin" value="Sign in"/>
        </form>
    </body>
</html>
